protected void mergeResource_MergeId(
            Resource target, Resource source, boolean sourceDominant, Map<Object, Object> context) {
        String src = source.getMergeId();
        if (src != null) {
            if (sourceDominant || target.getMergeId() == null) {
                target.setMergeId(src);
            }
        }
    }

            <code>
            <![CDATA[
    /**
     * @deprecated this was unused and has no replacement, this method returns {@code null} now.
     */
    @Deprecated(since = "4.0.0")
    public String getMergeId() {
        return null;
    }

    /**
     * @deprecated this was unused and has no replacement, this method is a no-op now.
     */
    @Deprecated(since = "4.0.0")